Scientific study of date and site determinations on Japanese and Chinese ancient metal relics

(1)1995年至1997年，对日本与中国的古代金属文物进行科学联合研究。对种源和测年方法进行了研究。采用燃烧后质谱计的铅同位素方法进行物源分析。采用串列加速器质谱仪的放射性碳测年法和热释光测年法进行测年分析。对两国的古代金属器物进行了分析。(2)采用铅同位素方法对湖北遗址(公元前14C，商代)、湖北中国等古代青铜器物进行了来源分析。对样品进行了中子活化分析和扫描电子显微镜分析。研究结果对古青铜器的物源分析有一定的参考价值。利用放射性碳测年法和热释光测年法对日本奈贺县出土的铁渣和中国天城出土的铜渣进行了年代分析。铁渣和铜渣还没有确定年代。(4)这项研究的结果在今年5月25日至27日在日本松江市举行的第四届金属及合金使用国际会议(BUMAVI)上发表。

(1) Scientific joint research of ancient metal relics of Japan and China, was performed from 1995 to 1997. Provenance and dating methods were studied for the research. The lead isotope method using mass-spectrometer after combustion was selected for provenance analysis. The radiocarbon dating method using tandem-accelerator mass spectrometer and the thermoluminescence method were selected for dating analysis. Ancient metal objects of the two coutries were analyzed by the above-mentioned methods.(2) The lead isotope methods was used for provenance analysis of ancient bronze objects, including the objects from Hubei remains (BC14C,Shang Dynasty period), Hubei province, China. The objects were also analyzed by neutron activation analysis and scanning electron microscope analysis. The results are useful for provenance analysis of ancient bronze objects. The provenance of the Shang Dynasty period objects from Hubei remains was found to be different from that of the objects of the latter periods.(3) The radiocarbon dating method and the thermoluminescence method were used for dating analysis of iron slags unearthed in Nigata prefecture, Japan and copper slags unearthed in Day city, China. Iron and copper slags had not dated. The results are useful for dating analysis of ancient metal making.(4) The results of this research are reported at the Fourth International Conference on the beginning of the Use of Metal and Alloys (BUMAVI) in May 25-27, this year, at Matsue City, Japan.